Digital thermostat W1209WK

Product detailed description

The digital thermostat W1209WK is a simple temperature controller that simultaneously displays the set and actual measured values on the display. It is suitable for switching a device on and off based on temperature, whether it is heating or cooling.

A compact housing is built into the panel, with buttons located directly next to the display. The thermostat includes a probe with a waterproof thermistor housing and a 100 cm cable. The set parameters are not lost after power is turned off. The product is not a standalone unit and requires professional installation.

Features

• displays set and current temperature
• panel housing with buttons near the display
• cooling or heating mode according to choice
• adjustable hysteresis and temperature calibration
• NTC probe with waterproof thermistor housing
• stored parameters survive power off

Technical parameters

• model designation: W1209WK/W2809
• temperature measurement range: -50°C to 110°C
• measurement step: 0.1°C
• accuracy: 0.1°C
• adjustable hysteresis: 0.1°C~30°C
• temperature calibration: -10° to +10°
• refresh rate: 0.05 s
• supply voltage: DC12V/90mA
• relay switching contact: 250VAC/5A
• sensing element: NTC (10K 0.5%), 100 cm cable, waterproof thermistor housing
• mounting hole: 45 × 26 mm, depth 30 mm

Package contents

• 1 x digital panel thermostat DC12V -50-110°C W1209WK/W2809
• 1 x NTC temperature probe (10K 0.5%) with waterproof thermistor housing

Settings

• A short press of SET displays the set temperature, and you can adjust it using the SET (up) or °C/F (down) buttons. One press changes the value by 0.1 °C; a long press speeds up the change. After 5 s, the parameters are saved (the display stops blinking).
• A long press of SET selects parameters P0~P8. If you briefly (0.5 s) press both SET and °C/F at the same time, the lower part of the display starts blinking, and you can change the value; after 5 s, it is saved and the thermostat returns to operation.
• P0 sets the mode: C means cooling, H means heating; factory setting is C.
• P1 is hysteresis in the range 0.1 °C ~ 30 °C.
• P2 and P3 define the upper and lower limits of the adjustable temperature; factory settings are 110°C and -50°C, respectively.
• P4 corrects the temperature relative to the environment in the range -10.0°C ~ 10.0°C (factory setting 0°C).
• P5 is unused.
• P6 – on/off, factory setting is off.
• P7 switches between Celsius and Fahrenheit degrees; factory setting is °C.
• P8 – factory setting (On/Off), default is Off.